checkmate
noun
[ ˈtʃɛkmeɪt ]
• a position in which a player's king is directly attacked by an opponent's piece or pawn and has no possible move to escape the check. The attacking player thus wins the game.
checkmate
verb
• put into checkmate.
Origin:
Middle English: from Old French eschec mat, from Arabic šāh māta, from Persian šāh māt ‘the king is dead’.